Multi-component rotor for an electric motor of an appliance
AssigneeWhirlpool Corporation
InventorsKrati Bhargava, James Hull
Life of this patent
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Abstract
A motor for a laundry appliance includes a drive shaft coupled to a drum at a first end. The rotor frame is coupled proximate the second end of the drive shaft, where the rotor frame includes at least one polymeric material. A central hub includes a core and a perimetrical ring that extends circumferentially around the core. A plurality of recesses are defined within a planar surface of the perimetrical ring, wherein a portion of the polymeric material is received within the plurality of recesses to secure the rotor frame to the central hub.
Claims20
A metallic coupler for a polymeric rotor, the metallic coupler comprising:
- a cylindrical core that is configured to receive a drive shaft;
- and
- an outer ring that extends around the cylindrical core and defines an upper planar surface and a lower planar surface that extend outward from an outer surface of the cylindrical core, the outer ring including an outward-facing cylindrical surface that extends between the upper planar surface and the lower planar surface, wherein
- a plurality of recesses are defined within the outer ring and extend into the outer ring through at least one of the upper planar surface and the lower planar surface;
- the plurality of recesses are configured to receive at least one polymeric material;
- the plurality of recesses are defined between the outer surface of the cylindrical core and the outward-facing cylindrical surface of the outer ring;
- and
- the plurality of recesses are further configured to rotationally and axially secure a rotor frame that is formed of the at least one polymeric material.
A metallic coupler for a polymeric rotor, the metallic coupler comprising:
- a core defining a core outer surface;
- an outer perimetrical ring that extends outward from the core outer surface to an outward-facing cylindrical surface, wherein
- the outer perimetrical ring includes a plurality of recesses that extend into the outer perimetrical ring through at least one of an upper planar surface and a lower planar surface of the outer perimetrical ring, and wherein the plurality of recesses are configured to receive a polymeric material to secure a rotor frame that is made from the polymeric material.
A metallic coupler for a polymeric rotor, the metallic coupler comprising:
- a core that is configured to receive a drive shaft;
- an outer perimetrical ring extending concentrically around an outer surface of the core, wherein the outer perimetrical ring includes a plurality of recesses that define an attachment portion that is positioned between the outer surface of the core and an outward-facing surface of the outer perimetrical ring, wherein the attachment portion is configured to receive a portion of a polymeric material to secure a rotor frame that is made of the polymeric material.
Dependencies are inferred from the claim text.